From: Lorenzo Colitti <lore...@google.com> Date: Fri, 20 Nov 2015 09:19:25 +0900
> In this case, userspace knows that that app's connections are now > unusable because it configured an iptables rule to block them. The > kernel doesn't really know until it the time comes to send a packet, > and maybe not even then. Netfilter could perform signalling on skb->sk when it drops packets. Your example is actually a argument _for_ doing this in the kernel. :-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
